simecol (version 0.8-14)

addtoenv: Add Functions from a Non-nested List of Named Functions to a Common Environment

Description

Create and set an environment where elements (e.g. functions) within a non-nested named list of functions see each other. This function is normally used within other functions.

Usage

addtoenv(L, p = parent.frame())

Arguments

L

a non-nested list of named functions.

p

the environment where the functions are assigned to. Defaults to the parent frame.

Value

The list of functions within a common environment.

Details

This function is used by the `solver functions' of simecol.

See Also

attach, environment

Examples

# NOT RUN {
eq <- list(f1 = function(x, y)    x + y,
           f2 = function(a, x, y) a * f1(x, y)
          )

fx <- function(eq) {
  eq <- addtoenv(eq)
  print(ls())
  print(environment(eq$f1))
  f1(3,4) + f2(1,2,3)
}

fx(eq)
## eq$f2(2,3,4)       # should give an error outside fx
environment(eq$f2)    # should return R_GlobalEnv again
# }